Control apparatus and control method for hybrid vehicle

Abstract

A controlling apparatus 1 according to an embodiment is a controlling apparatus of a hybrid vehicle 30 including a motor generator 3 that is mechanically connected to an internal combustion engine 2 and that can generate power in response to rotation of the internal combustion engine 2 and provide torque to the internal combustion engine 2, the controlling apparatus 1 including a rotation information acquiring unit 11 that acquires rotation information of the motor generator 3 with a higher resolution than rotation information of the internal combustion engine 2 and a power generation determining unit 12 that makes a determination regarding the power generation by the motor generator 3 based on the rotation information of the motor generator 3.

The invention claimed is: 
     
       1. A controlling apparatus of a hybrid vehicle comprising a motor generator that is mechanically connected to an internal combustion engine and that can generate power in response to rotation of the internal combustion engine and provide torque to the internal combustion engine, the controlling apparatus comprising:
 a rotation information acquiring unit that acquires rotation information of the motor generator with a higher resolution than rotation information of the internal combustion engine; and 
 a power generation determining unit that makes a determination regarding the power generation by the motor generator based on the rotation information of the motor generator, wherein the power generation determining unit permits idle power generation by the motor generator when starting of the internal combustion engine is completed and a starting completion reference time has passed, 
 wherein the power generation determining unit accepts or does not permit the idle power generation by the motor generator, based on a result of comparing a rotational speed of the motor generator and a power generation possible reference rotational speed. 
 
     
     
       2. The controlling apparatus according to  claim 1 , wherein
 the power generation determining unit cancels the permission of the idle power generation when the motor generator is in an abnormal state or when brake control is performed. 
 
     
     
       3. The controlling apparatus according to  claim 1 , wherein
 the power generation determining unit accepts the idle power generation by the motor generator when the starting of the internal combustion engine is not completed and a rotational speed of the motor generator is equal to or greater than a power generation possible reference rotational speed. 
 
     
     
       4. The controlling apparatus according to  claim 1 , wherein
 the power generation determining unit does not permit the idle power generation by the motor generator when the starting of the internal combustion engine is not completed and the rotational speed of the motor generator is smaller than a power generation possible reference rotational speed. 
 
     
     
       5. The controlling apparatus according to  claim 1 , wherein
 the power generation determining unit permits cruise power generation by the motor generator when the rotational speed of the motor generator is equal to or greater than a high rotation reference rotational speed. 
 
     
     
       6. The controlling apparatus according to  claim 5 , wherein
 the power generation determining unit cancels the permission of the cruise power generation when the motor generator is in an abnormal state or when brake control is performed. 
 
     
     
       7. The controlling apparatus according to  claim 5 , wherein
 when the cruise power generation is currently performed, the power generation determining unit continues the cruise power generation even if the rotational speed of the motor generator is smaller than the high rotation reference rotational speed as long as the rotational speed of the motor generator is equal to or greater than a second high rotation reference rotational speed lower than the high rotation reference rotational speed. 
 
     
     
       8. The controlling apparatus according to  claim 1 , wherein
 the motor generator causes the internal combustion engine to start to rotate when the hybrid vehicle departs. 
 
     
     
       9. The controlling apparatus according to  claim 1 , wherein
 the hybrid vehicle is a hybrid two-wheeled vehicle. 
 
     
     
       10. A controlling method of a hybrid vehicle comprising a motor generator that is mechanically connected to an internal combustion engine and that can generate power in response to rotation of the internal combustion engine and provide torque to the internal combustion engine, the controlling method comprising:
 acquiring, by a rotation information acquiring unit, rotation information of the motor generator with a higher resolution than rotation information of the internal combustion engine; and 
 making a determination, by a power generation determining unit, regarding the power generation by the motor generator based on the rotation information of the motor generator, wherein the power generation determining unit permits idle power generation by the motor generator when starting of the internal combustion engine is completed and a starting completion reference time has passed, 
 wherein the power generation determining unit accepts or does not permit the idle power generation by the motor generator, based on a result of comparing a rotational speed of the motor generator and a power generation possible reference rotational speed.